Caleb Evers—a young homicide detective who is Wysocki's latest partner, and impresses both Wysocki (despite the fact Evers is also a Cubs fan) and Colvin with his observational skills. He is a graduate of Northwestern University and has a pending application to the Federal Bureau of Investigation. Devin Kelley as Vonda Wysocki—Jarek's niece and a rookie police officer. Her father was killed in the line of duty when she was a young child, and her uncle helped raise her and supported her through the police academy. Todd Williams as Isaac Joiner—Vonda's partner, a young and ambitious officer whose hot-shot ways lead Wysocki to worry for his niece. It is later revealed that he is Vonda's boyfriend. Billy Lush as Liam Hennessey—introduced as a low-level thug, later revealed to be a police officer named Chris Collier working undercover in the Irish mob. Delroy Lindo as Alderman Ronin Gibbons—a Chicago alderman with more than twenty years in office, widely seen as the most influential figure in the city's political machine. Colvin identifies him as the main target in her anti-corruption crusade. Recurring Adam Arkin as FBI Division Chief Cuyler. Steven Culp as Dennis Mahoney—the mayor's chief of staff. Madison Dirks as Mikey—a man who works for Killian. Colby French as Roger Kelly—Colvin's chief of staff as appointed by Gibbons. John Heard as Mayor McGuinness, the mayor of Chicago. Brad William Henke as Ernie "Moose" Moosekian—part of the CPD's Narcotics Division Warren Kole as Ray Bidwell—Colvin's driver, former Marine, and security detail. Patrick Gough as Will Gainey—a man who works for Killian. Camille Guaty as Elena—Jarek's fiancée, who breaks up with him after he tells her he is still in love with Dina. Shannon Lucio as Elizabeth Killian—Hugh Killian's daughter. Cynthia McWilliams as Lilly Beauchamp—Gibbons' secretary and lover. Amy Price-Francis as Dina Wysocki—Jarek's ex-wife, with whom he carries on an affair while engaged to Elena. Patrick St. Esprit as Hugh Killian—an Irish mob boss. Phillip Edward Van Lear as Ellis Hicks—Gibbons' right-hand man. Production and cancellation Originally titled Ride-Along, Fox green-lit the pilot in January 2010. The series was created by Shawn Ryan, who grew up in Rockford, Illinois. Regarding the setting of Chicago, Ryan said, "It's a city I'm very familiar with, and one I haven't seen photographed much, at least on TV," and that Chicago is "the center of the universe." When describing the show, he stated, "There will be a